“Fernandez’s insistence on staking her claim as Macri’s principal opponent plays into the president’s hands,” said Juan Cruz Diaz, managing director of the Cefeidas Group, a regulatory risk advisory company based in Buenos Aires.

“Fernandez doesn’t have the support to threaten Macri at a national level and yet will serve to impede new leaders emerging who can rebuild a Peronist movement capable of challenging him,” said Mr. Díaz